Which of the following are advantages of using an SID of 72 inches for chest radiography?
1)Decreased magnification of the heart
2)Sharper outlines of the delicate lung structures
3)Greater penetration of the mediastinum
A) 1 and 2
B) 1 and 3
C) 2 and 3
D) 1, 2, and 3

Question

Quizplus · Accepted Answer

Using a 72-inch SID (Source to Image Distance) in chest radiography decreases magnification of the heart and provides sharper outlines of lung structures due to reduced geometric distortion and improved image resolution. Greater penetration of the mediastinum is not directly related to SID.

Which of the Following Are Advantages of Using an SID